[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]
Re: [APML] New Film Test
>
>
> Brad Wallis claims that the ND filters are not, in fact, neutral.
>
> Jerry
>
>
I too had heard/read that somewhere, that's why I asked Tony. I do
think however that as Philip pointed out, a decent brand (e.g, B+W)
would try to be mostly neutral. Cokin on the other hand ...??
Check out some of these Schott ND curves. They're mostly flat but
it would be nice if they were flatter.
http://www.besoptics.com/html/body_schott_ng_optical_filters.html
Shekhar
-- APML Archives at <http://astro.umsystem.edu/apml/> ---
Unsubscribe at <majordomo@seds.org>